"There are two trees outside the window, one is a jujube tree and the other is a jujube tree." Recently, Lu Xun's loneliness literature is gaining momentum on Douyin. Behind the wonderful comments of many netizens, all of them reveal the "bitterness" of being a "single dog". In 2018, the number of singles in China has reached 240 million. With the expansion of the single group and the enhancement of the consumption power of the single group, a new consumption culture - the single economy has begun to emerge.

Tracing the origin of the single economy, it can be found that, like the concept of the night economy, it originated from the "single woman telemarketing list economy" proposed by McKinsey in 2001. Influenced by the popular movie "BJ's Diary of a Single", the living conditions of single women began to enter the public eye, and after discussing the social and economic lifestyles of single, young, professional women in urban areas, McKinsey proposed " The Single Woman Economy". With the development of society, single men have also begun to be valued by the public, and the single economy has also expanded to the scope of men, becoming what we now know as the "single economy".

In simple terms, it is an umbrella term for all economic activities related to the single group. The single-person economy in a broad sense is equivalent to the "single-person economy", covering all single people living alone, including unmarried, divorced, and telemarketing list widowed single-living groups. At present, the key single groups in China are mainly unmarried single young people living alone, and the economy driven by them is the single economy in the narrow sense. Although the number of singles in China is growing due to reasons such as late marriage, late childbirth, or even infertility, but considering the increase in the elderly population caused by the current aging problem in China, this time we focus on the single economy in a broad sense.